Health and Human Services Secretary Alex Azar applauds as U.S. President Donald Trump delivers a speech about lowering prescription drug prices from the Rose Garden at the White House in Washington, U.S., May 11, 2018. REUTERS/Jonathan Ernst

Health and Human Services Secretary Alex Azar applauds as U.S. President Donald Trump delivers a speech about lowering prescription drug prices from the Rose Garden at the White House in Washington, U.S., May 11, 2018. REUTERS/Jonathan Ernst